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Technical Data Sheet
PartsTable / COMPONENT / 853658
853658 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The TRANSFORMER,CURRENT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 420 OVERALL, hole_diameter: 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM, outside_diameter: 0.239 INCHES NOMINAL IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-043-1754, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
853658
NSN: 5310-00-043-1754
FSC: 5310
CAGE: 19203 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV US ARMY RESEARCH, DEVELOPMENT AND ENGINEERING COMMAND ARMAMENT (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 420 OVERALL
hole_diameter0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
outside_diameter0.239 INCHES NOMINAL IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentPASSIVATE OVERALL
material_thickness0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
nondefinitive_spec/std_dataB CLASS AND 1 STYLE
specification/standard_data81348-FF-W-84 GOVERNMENT SPECIFICATION AND 24617-431754 MANUFACTURERS STANDARD AND 96906-MS35337/CANCELED/ GOVERNMENT STANDARD
material_document_and_classification66,UNS S30200 FED STD 1ST MATERIAL RESPONSE OR 66,UNS S42000 FED STD 2ND MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-043-1754
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 853658 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
NONDEFINITIVE SPEC/STD DATA: B CLASS AND 1 STYLE
•
MATERIAL THICKNESS: 0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
SPECIFICATION/STANDARD DATA: 81348-FF-W-84 GOVERNMENT SPECIFICATION AND 24617-431754 MANUFACTURERS STANDARD AND 96906-MS35337/CANCELED/ GOVERNMENT STANDARD
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
•
HOLE DIAMETER: 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.239 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66,UNS S30200 FED STD 1ST MATERIAL RESPONSE OR 66,UNS S42000 FED STD 2ND MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATAB CLASS AND 1 STYLE
MATERIAL THICKNESS0.025 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
SPECIFICATION/STANDARD DATA81348-FF-W-84 GOVERNMENT SPECIFICATION AND 24617-431754 MANUFACTURERS STANDARD AND 96906-MS35337/CANCELED/ GOVERNMENT STANDARD
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.239 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION66,UNS S30200 FED STD 1ST MATERIAL RESPONSE OR 66,UNS S42000 FED STD 2ND MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
118370Interchangeable
interchangeable cross-reference
interchangeable
20504-16Interchangeable
interchangeable cross-reference
interchangeable
L40NInterchangeable
interchangeable cross-reference
interchangeable
RJ20MInterchangeable
interchangeable cross-reference
interchangeable
FTC159-1074Interchangeable
interchangeable cross-reference
interchangeable
349-1052Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 853658?
853658 is a TRANSFORMER,CURRENT.
What parts can replace 853658?
There are 22 known substitutes for 853658: 118370, 20504-16, L40N and 19 more. Substitute compatibility should be verified for your specific system.
Is 853658 still available?
853658 is currently cancelled.
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Last verified: July 2026